package basic._02_单例模式;

/**
 * @author： YHSimon
 * @date： 2022-07-08 15:11
 */
// 懒汉式  线程安全
public class Singleton2 {
    private static Singleton2 instance;
    private Singleton2(){}
    public static synchronized Singleton2 getInstance(){
        if(instance==null){
            instance=new Singleton2();
        }
        return instance;
    }
}
